Pith Number

pith:54GCQ3UQ

pith:2010:54GCQ3UQW4J5GDCC64QDIZM4QH

not attested not anchored not stored refs pending

Plane square tilings

Mathieu Dutour Sikiri\'c

arxiv:1101.0223 v1 · 2010-12-31 · math.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{54GCQ3UQW4J5GDCC64QDIZM4QH}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T04:32:10.791303Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef0c286e90b713d30c42f72034659c81d73ff6704701e4d75264930353cab29b

Aliases

arxiv: 1101.0223 · arxiv_version: 1101.0223v1 · doi: 10.48550/arxiv.1101.0223 · pith_short_12: 54GCQ3UQW4J5 · pith_short_16: 54GCQ3UQW4J5GDCC · pith_short_8: 54GCQ3UQ

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/54GCQ3UQW4J5GDCC64QDIZM4QH \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: ef0c286e90b713d30c42f72034659c81d73ff6704701e4d75264930353cab29b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e6d65b191b4cd565789034b1d68aa025f93e35b01dc5d9a76f0b3abb65d22f6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2010-12-31T08:56:25Z",
    "title_canon_sha256": "f8c0a3a8d74025e65ff8966cf3af0e52ac84c09aa081f3a9c583a7e295d78050"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.0223",
    "kind": "arxiv",
    "version": 1
  }
}